{247} Current Sense Resistor Calculation - UC3843 DCM Flyback SMPS design -Urdu

Ғылым және технология

Current Sense Resistor Calculation in UC3843 DCM Flyback SMPS design. i explained in urdu / hindi language. Current-mode control is widely used for switching mode power supplies due to its high reliability, and it protects and limits the current at peak output power operation,
Download Current Sense Calculation bit.ly/3jxHHl6
The current sense signal is an essential part of a current-mode switch mode power supply design; it is used to regulate the output and also provides overcurrent protection. The current sensing circuit for UC3843 in current-mode control provides the protection at full load operation and ads the current limiting facility in the design. The sense resistor RS monitors the current. it is connected at source pin of the mosfet and ground line of the dc rail. the all current have to flow through this resistance and it is causes to drop voltage across this sense resistance. thus these dropped voltage are fed to isense pin of the UC3842, UC3843, UC3844, UC3845, as the current reaches are at its peak primary current value, it detects the peak voltage for the current sense comparator, which immediately terminates the drive pulse until the voltage across this sense resistance drop below 1 volt. The UC384x family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error ampinput, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem-pole output stage designed to source or sink high peak current.
i explained How to calculate SMPS design discontinuous flyback Switch Mode Power Supply in power electronics very easy. how to calculate SMPS circuit design using UC3843. after watching this series of videos you will be able to:-
how to #design #calculate #smps
how to understand smps design calculations for discontinuous flyback function of switch mode power supply, in this tutorial i draw the circuit diagram and placed components and made wiring of the components.
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how to calculate dc buss bar / rail and bulk / main dc / filter capacitor
hoe to select minimum maximum voltage for SMPS
how to design buck boost converter / half bridge / full bridge / forward / feed forward / zero volt switching ZVS / zero current switching ZCS / flyback converter
#smps, #repair, #troubleshooting,
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Пікірлер: 91

  • @ssvlogs7392
    @ssvlogs73922 жыл бұрын

    First like first comment please pin

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot

  • @AmbrosiaAndNectar
    @AmbrosiaAndNectar2 жыл бұрын

    Very nice sharing 👍 Have a nice day 💐

  • @rockyboye2159
    @rockyboye21592 жыл бұрын

    قابل تحسین۔ میں ایک ماہ سے اسی میں پھنسا ہوا تھا۔ أپ کی ویڈیو نے آسانی کر دی۔ شکریہ

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    الحمدللہ

  • @pragatmudra8372
    @pragatmudra8372 Жыл бұрын

    What an eye opener video, thx for educating your viewrs

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    Жыл бұрын

    it is my pleasure

  • @APMElectronicsnewtech
    @APMElectronicsnewtech2 жыл бұрын

    Very good 👌

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot sir

  • @Mamta4455
    @Mamta44552 жыл бұрын

    Very good vdo you mai apka fan hu best vdo sir

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    best regards and special thanks

  • @MudassarHussain-hs6sf
    @MudassarHussain-hs6sf2 жыл бұрын

    Masha Allah Allah pak aap ko sehat o tandrusti day aameen

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    aameen Jazaak Allah khair

  • @ARA-HOUSE
    @ARA-HOUSE2 жыл бұрын

    Lk 29 brother 👍👍👍

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot dear sister

  • @rndinelectronics2533
    @rndinelectronics25332 жыл бұрын

    Dear Sir , In short I say you are having deep knowledge about Power Electronics. I learnt so much by watching your videos.

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    most welcome and special thanks for your beautiful comment

  • @emanfatima4049
    @emanfatima40492 жыл бұрын

    Great information Thanks for sharing

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot

  • @tarijamil7710
    @tarijamil77107 ай бұрын

    Good janab.mehnat ka thx.

  • @HarlavanisPanagiotis
    @HarlavanisPanagiotis2 жыл бұрын

    Amazing video dear friend, have a happy Sunday!

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot

  • @HETRM
    @HETRM15 күн бұрын

    bahut shukriya sir!

  • @shahzilgamer9738
    @shahzilgamer97382 жыл бұрын

    Wa alaikum salam

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    جزاك اللهُ خيراً

  • @fatimaKitchen12
    @fatimaKitchen122 жыл бұрын

    Walkum aslam good vedio

  • @gopalarao8578
    @gopalarao85782 жыл бұрын

    Haseeb bhai Namaskaar. another very knowledgeable video. Thank you very much 🙏

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    it is my pleasure

  • @chetanchaitu9161
    @chetanchaitu9161 Жыл бұрын

    Super Explanation literally Mind blown away....what an explanation sir Hatsoff 🙏🙏🙏

  • @pareshmhatre4019
    @pareshmhatre4019 Жыл бұрын

    बेहतरीन!

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    Жыл бұрын

    best regards

  • @aayesha6227
    @aayesha62272 жыл бұрын

    very informative video sir thanks for sharing your valuable information with us ❤

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    Jazaak Allah khair

  • @muhammadishtiaq24
    @muhammadishtiaq242 жыл бұрын

    Mashallah very good

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot

  • @vijayakumarkumar9190
    @vijayakumarkumar91902 жыл бұрын

    Very good and useful information sir thanks for sharing this knowledge to us

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    it is my pleasure

  • @hamadsherazi6896
    @hamadsherazi6896Ай бұрын

    Outstanding sir

  • @ssvlogs7392
    @ssvlogs73922 жыл бұрын

    Mashallah brother aapka work bahut great hai aur bahut acche se explain bhi karte Hain dekh ke achcha lagta hai aapki kam ko bahut mehnat karte hain aap Allah aapko kamyab Kare full watch ki hai video dobara 🙋😍🤲🌹💖💖👌✅👍💝💝💝

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    Jazaak Allah khair stay blessed

  • @susantaatha6468
    @susantaatha64682 жыл бұрын

    Very good informative. Many many thanks.

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    best regards

  • @msbbadsha1456
    @msbbadsha14562 жыл бұрын

    Wonderful video

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    best regards

  • @Ushasharmakitchen
    @Ushasharmakitchen2 жыл бұрын

    good morning brother good talent bhout mushkil subject h 🙏🙏

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot dear sister

  • @rajurawat5
    @rajurawat52 жыл бұрын

    Sir ji 🙏 nice video 👍

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    special thanks

  • @mithunsaha9456
    @mithunsaha9456 Жыл бұрын

    Thank u sir ❤

  • @asifjutt8824
    @asifjutt88242 жыл бұрын

    👍❤

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    best regards dear brother

  • @kwsa4657
    @kwsa46572 жыл бұрын

    👍

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    best regards and special thanks

  • @aanish2.094
    @aanish2.0942 жыл бұрын

    Aanish ka daily dose

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    best regards

  • @nayanjagirdar8408
    @nayanjagirdar84082 жыл бұрын

    👌👌👌👍

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    best regards and special thanks

  • @pravinpadhiyar2
    @pravinpadhiyar23 ай бұрын

  • @KBTechbd
    @KBTechbd2 жыл бұрын

    Nice vedeio

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot

  • @zakiausa
    @zakiausa2 жыл бұрын

    salam brother 🇺🇸💐👍good work how are you brother

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    وعليكم السلام ورحمة الله وبركاته yes sister i am fine

  • @jaswantrajput8669
    @jaswantrajput86693 ай бұрын

    Good morning sir

  • @electronicslover1120
    @electronicslover11202 жыл бұрын

    Great sir, Thankyou very much, Maine aapka videos aur dekha hu current sense ka fir bhi apne aap ko rok ni paya fir se dekhne ke liye, sir uc3843 se max kitna power ka SMPS design kr sakte hai 1 MOSFET Wale topology se?

  • @muratyasar7916
    @muratyasar791611 ай бұрын

    Süper bir video olmuş 12v 50a 100a hb smps devresi hakkında bilgi verirmisiniz.

  • @electroniquepassion
    @electroniquepassion2 жыл бұрын

    👋👋👍👍❤️👍👍👋

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot dear friend

  • @cookingwithadnan5698
    @cookingwithadnan56982 жыл бұрын

    وعلیکم اسلام،👍👍

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot

  • @pragatmudra8372
    @pragatmudra8372 Жыл бұрын

    Sir plz give more info about the convertor constant which you have selected as 2.5

  • @MujtabaGhulam-cj2vj
    @MujtabaGhulam-cj2vj2 ай бұрын

    Can we use a transistor as current regulator keeping constant voltage?

  • @prabhatkumar2632
    @prabhatkumar2632 Жыл бұрын

    Sir isolation transfarmer kaysa banya

  • @nitantkatyal8202
    @nitantkatyal820211 ай бұрын

    Hello sir, Kya DCM (duty cycle), Har pwm ic mein same rehta hai kya, air agar NAHI to usko kaise le, pls batiye...tks

  • @mohdasim1028
    @mohdasim10282 жыл бұрын

    buck converter round core calculation 12v24v36v48v72v /10A

  • @faysalahammed7099
    @faysalahammed7099 Жыл бұрын

    Dear Sir, I have a pic microcontroller that generates a PWM signal but when I connect this PWM signal to the MOSFET gate(Transformer switching) the PWM signal voltage amplitude goes 1.5v or lesser hence MOSFET doesn't switch. In this situation what should I do.

  • @sohebkhansaifi3944
    @sohebkhansaifi39442 жыл бұрын

    How to set duty cycle of the ic ??

  • @korakagazofficial1285
    @korakagazofficial12852 жыл бұрын

    Sir what is work of lm393 ic

  • @AbdullahAbdullah-ql6vu
    @AbdullahAbdullah-ql6vu3 ай бұрын

    Sir DC me frequency ni hoti DC direct current hoti pr is me frequency kesa plzz explain kr den ❤

  • @pragatmudra8372
    @pragatmudra8372 Жыл бұрын

    For full load the duty cycle is not utilised to maximum 50%,

  • @ENGYASEEN
    @ENGYASEEN2 жыл бұрын

    Sir please uc3845 pin 2and 3 configuration batain please 🥺

  • @Mamta4455
    @Mamta44552 жыл бұрын

    Sir without load volt 110 but 100watt bulb load volt reached 10 v why on crt kit kaha problm hota h esa

  • @yatinpatel322
    @yatinpatel3222 жыл бұрын

    Resistor kitane wattage ka hoga

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    current value ka square, multiply with Resistor Value i^2R

  • @yatinpatel322

    @yatinpatel322

    2 жыл бұрын

    @@haseebelectronicsurdu thank 😊 you

  • @GoutamDas-bo6ey
    @GoutamDas-bo6ey2 жыл бұрын

    Smd capacitar जो कुछ लिखा नहीं रहता उसकी valu केसे पता करे

  • @MOHYUDIN14
    @MOHYUDIN142 жыл бұрын

    8:00 calculation ki galti ho gai thori. 1x10^-5

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    Oh really sorry for that but no problem, the procedure is same

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    i will correct it special thanks for your point

  • @maqsoodfarooqi3080
    @maqsoodfarooqi3080 Жыл бұрын

    اسلام وعلیکم میرے پاس جو سپلائی ھے اس میں 3845 لگی ھے آئی سی پر 8 وولٹ آتے ہیں آئی سی کی آؤٹ پٹ پن پر کوئی وولٹ نہیں اور سپلائی بند ھے آئی سی تبدیل کر کے دیکھا ھے

  • @shefqetkaralliu6816
    @shefqetkaralliu68162 жыл бұрын

    👍❤️

  • @haseebelectronicsurdu

    @haseebelectronicsurdu

    2 жыл бұрын

    thanks a lot

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